exam Maths Puzzle Numerical Ability

I am looking for someone who can help with statistics???

Anyone? I used this site for Algebra and it was so fantastic. I really need help with Stats.

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exam Other Question

Find the slope of the line with the equation 3x - 2y = 1 i do not understand how to get the answer to the following:
9 - 8x = x^2
i know the answer is x=-9 and x=1 but i do not know how to get that answer
thank you